alternative energies for -- for hybrid, for hydrogen, for battery-powered cars, so that we can clean up our environment and at the same time get our economy going by creating millions of jobs. we can do that, we as americans, because we're the best innovators, we're the best producers, and 95% of the people who are our market live outside of the united states of america. >> senator obama? >> this is one of the biggest challenges of our times. >> and it is absolutely critical that we understand this is not just a challenge, it's an opportunity, because if we create a new energy economy, we can create five million new jobs, easily, here in the united states. it can be an engine that drives us into the future the same way the computer was the engine for economic growth over the last couple of decades. and we can do it, but we're going to have to make an investment. the same way the computer was originally invented by a bunch of government scientists who were trying to figure out, for defense purposes, how to communicate, we've got to understand that this is a national security issue, as well. and that's w